Conference Agenda

Gas Transport in the Barrier – Lessons learnt from BenVaSim-II, EURAD-GAS and DECOVALEX2023

Michael Pitz, Gesa Ziefle, Jobst Maßmann, Eike Radeisen, Norbert Grunwald, Olaf Kolditz, Thomas Nagel

An Assessment Strategy for the Evaluation of Radionuclide Migration from Potential Repositories in Claystone

Christoph Behrens, Merle Bjorge, Julia Dose, Marlene Gelleszun, Niklas Meindl, Florian Panitz, Shorash Miro, Alexander Renz, Robert Seydewitz, Wolfram Rühaak, Stephanie Zeunert, Phillip Kreye

CIGEO project - Analysis of the effect of segmental lining joints on the tunnel mechanical behaviour during the operational phase and over the long term

Marco Camusso, Minh-Ngoc Vu

Adapting disposal concepts to reflect emerging UK geologiccal environments

Matthew Edward Kirby, Simon Norris

New data on the compositional-structural characteristics of the Opalinuston Formation from Southern Germany: Facies-based investigations and mineralogical analyses

Tilo Kneuker, Thomas Mann, Reiner Dohrmann, Kristian Ufer, Jochen Erbacher, André Bornemann, Bernhard Schuck, Lukas Pollok

Effects of ionic strength on cation exchange selectivities of Ca(II), Mg(II), K(I) for Na(I) in compacted and dispersed montmorillonite

Ryo Yasuda, Shingo Tanaka, Daisuke Hayashi, Hitoshi Owada, Tomoko Ishii, Yukinobu Kimura

Geochemical investigation of veins and evidence for paleo fluid flow in Opalinus Clay

Lukas Aschwanden, Nathan Looser, Martin Mazurek, Thomas Gimmi, Daniel Traber

Comparison of the clay mineralogy of fault and host rocks in the Opalinus Clay, Switzerland

Jonas Strasser, Susanne Gier, Kurt Decker

CO2 Long-term Periodic Injection Experiment (Mont Terri URL): Introduction to the in-situ experiment and results of the first phase

Martin Ziegler, David Jaeggi, Rolf Kipfer, Antonio Pio Rinaldi, Anne Obermann, Jonas Junker, Hua Shao, Markus Furche

Extraction, Quantification and Isotopic Characterisation of Gases Dissolved in Porewater of Argillaceous Rocks - Method Comparison and Evaluation

Florian Eichinger, Laura Kennell, Niko Kampman

GeM-DB – A basis for planning surface exploration programs

Raphael Dlugosch, Thies Beilecke, Tilo Kneuker, Lukas Pollok, Lisa Richter, Nicole Schubarth-Engelschall, Ralf Semroch

Influence of Rescue Chambers on the Design of Geological Repositories in Clay

Felix Lehnen, Berit Rauscher

MiniSandwich experiment – performance test in laboratory of a bentonite-based shaft sealing system

Christopher Rölke, Katja Emmerich, Eleanor Bakker, Hua Shao

Long term monitoring of physical and chemical parameters of a ce-mento-bentonitic filling material (CBFM) and of corrosion potential of a horizontal pipe made of carbon steel, submerged by the CBFM into a sealed cell of underground gallery

Ioannis IGNATIADIS, Yendoube Charles SANO MOYEME, Johan BERTRAND, Stéphanie BETELU

Multi-scale modelling of the Sandwich experiment in Mont Terri

Larissa Friedenberg, Matthias Hinze, Klaus Wieczorek

Study on the construction of disposal scenarios and a tentative migration modelling of cesium for the final disposal of radioactive-ly contaminated waste outside of Fukushima Prefecture

Eriko Minari, Kazuo Yamada, Kazuto Endo

All‑solid‑state reference electrode based on lithium lanthanum tita-nium oxide (LLTO) for the long term monitoring of nuclear waste dis-posals

Djouhar AOUBIDA, quoc-nghi PHAM, Stéphanie BETELU, Johan BERTRAND, Nita DRAGOE, Ioannis IGNATIADIS

Direct Mineral Content Prediction from Drill Core Images via Transfer Learning

Romana Boiger, Sergey V. Churakov, Ignacio Ballester Llagaria, Georg Kosakowski, Raphael Wüst, Nikolaos I. Prasianakis

OpenWorkFlow - Open-source synthesis-platform for safety in-vestigations in the site selection process

Olaf Kolditz, Christoph Lehmann, Thomas Nagel, Christoph Behrens, Alexander Renz, Phillip Kreye, Wolfram Rühaak

DEVELOPMENT AND USE OF THE THERMOCHIMIE DATABASE

Stéphane Brassinnes, Benoît Madé, Will Bower

Investigating the Effects of Small Organic Molecules on the Adsorption of Uranyl on Clay Minerals with Molecular Dynamics

Jakub Ličko, Andrey G. Kalinichev

Numerical investigation of pore characteristics in spherical and platelet particle beds

Otono Miura, Ryunosuke Oishi, Tsubasa Yagi, Shusaku Harada

Influence of salinity gradients on the diffusion of water and ionic species in dual porosity clay samples

Emmanuel Tertre, Thomas Dabat, Jingyi Wang, Sebastien Savoye, Fabien Hubert, Baptiste Dazas, Christophe Tournassat, Eric Ferrage

Diffusion experiment (36Cl, 3H) across concrete/claystone interface

Urs Mäder, Lukas Martin, Carmen Zwahlen, Sandra Baur, Christoph Vockenhuber, Andreas Jenni, Martin Heule, Marcus Christl, Mirjam Kiczka, Josep Soler

Long Term Safety studies at EDF with code_saturne

Jérôme BONELLE, Marc KHAM, Raphael LAMOUROUX

Interaction of groundwater in crystalline rock and a compacted bentonite buffer

Michael Kröhn, Klaus-Peter Kröhn

Migration of caesium decreases with increasing compaction of MX-80 bentonite

Theresa Hennig, Sina Grossmann, Jens Mibus, Luc R. Van Loon, Martin A. Glaus, Vinzenz Brendler

Impact of temperature on the transfer of mobile tracers in the Toarcian clayrock at the Tournemire URL

Maïwenn Humbezi Desfeux, Jean-Michel Matray, Manuel Marcoux

Diffusion of Np through Illite du Puy

Claudia Joseph, Bianca Schacherl, Tonya Vitova, Polina Lavrova, Theresa Hennig, Michael Kühn

Optimizing Wellbore Sealing with Japanese Na-Bentonite: In-sights from Two Vertical Wells at Grimsel Test Site, Switzerland

Takanori Kunimaru, Raphael Schneeberger, Armin Pechstein, Stratis Vomvoris

Experimental and modelling study of the hydro-chemo-mechanical behaviour of sand bentonite mixtures in hyperalkaline conditions

Christophe IMBERT, Andrés IDIART, Sebastien SAVOYE, Wissem DRIDI, Marcelo LAVIÑA, Miquel DE LA IGLESIA, Nicolas MICHAU, Benoit COCHEPIN, Jean TALANDIER

Reactive Transport Modelling of Material Interface Evolution in the HLW Near-field

Georg Kosakowski, Lukas Martin

Understanding the Effect of Indigenous Microorganisms in Bentonite on the Biocorrosion of Metal Canisters, for the Final Disposal of Nuclear waste (Under Relevant DGR Conditions)

Adam David Mumford, Marcos Martinez-Moreno, Cristina Povedano-Priego, Mar Morales-Hidalgo, Miguel Ruiz-Fresneda, Yon Ju-Nam, Mohamed L. Merroun, Jesus J. Ojeda

Cation exchange parameters for Opalinus Clay and its confining units

Paul Wersin, Lukas Aschwanden, Mirjam Kiczka

Geochemical alteration in selected bentonites affected by thermal interaction with steel and saline solution hydration

Raúl Fernández, Carlos Mota-Heredia, Jaime Cuevas

Iron-bentonite interaction in a water-saturated low temperature environment: mineralogy and microstructure

María Jesús Turrero, Elena Torres, Pedro Luis Martín, Raúl Fernández, Ana Isabel Ruiz, Almudena Ortega, Antonio Garralón, Belén Notario, Carlos Mota, Jaime Fernando Cuevas

Mineralogical evolution of COx claystone during in situ MCO experiment

Isabella Pignatelli, Nicolas Michau, Yannick Linard

Anoxic corrosion of carbon steel in different cementitious media and high temperature conditions: comparison between laboratory test and in situ experiment results

Charles Wittebroodt, Jules Goethals, Bojan Zajec, Valery Detilleux, Laurent De Windt

Redox buffering by iron-bearing clay minerals in the ferrous iron/smectite system

Harry J. L. Brooksbank, Anke Neumann

Modelling the reactive transport processes in unsaturated clay barriers – inclusion of capillary geochemistry

Shao-Jie Wu, Majid Sedighi, Andrey Jivkov

Microbial ecology of engineered barrier components of a deep geological repository for used nuclear fuel

Rachel C. Beaver, Rhiannon Punch, Cailyn Perry, Claire S. Tully, Katja Engel, Melody A. Vachon, W. Jeffrey Binns, Chang Seok Kim, James J. Noël, Josh D. Neufeld

Steel corrosion and reactive transport model in bentonite for predicting spent fuel disposal package lifetime

Milan Hokr, Lucie Baborová, Jan Šembera, Vratislav Žabka, Jan Stoulil, Dušan Vopálka, Eva Bedrníková, Petr Večerník, David Dobrev

Experimental study of swelling and permeability of a Bavarian bentonite, Friedland clay, and Opalinus clay at 35–150 °C

Artur Meleshyn, Matthias Hinze, Marvin Middelhoff

A new experimental system for studying gas formation and release during laboratory rock core heating experiments

Christian Ostertag-Henning, Oliver Helten

Temperature Influence on Swelling Pressure of Ca-Bentonite up to 150 °C

Deuk-Hwan Lee, Gi-Jun Lee, Seeun Chang, Minhyeong Lee, Seok Yoon, Chnagsoo Lee, Dong-Keun Cho

The CHENILLE experiment: Coupled beHaviour undErstaNdIng of fauLts: from the Laboratory to the fiEld

Rüdiger Giese, Audrey Bonnelye, Pierre Dick, Carolin Böse, Stefan Lueth, Ben Norden, Katrin Plenkers, Roman Esefelder, Christian Cunow, Sven Fuchs

COCONS: A numerical tool for Thermo-Hydro-Mecanical dimensioning of a deep geological repository High Level Waste area

Florian Escoffier, Sylvie Granet, Geoffroy Mélot, Isabelle Rupp

HotBENT at the Grimsel Test Site - Early THMC evolution of a buffer at up to 200°C

Florian Kober, Raphael Schneeberger, Stefan Finsterle, Stratis Vomvoris, Bill Lanyon

Thermo-hydraulic characterization of bentonite in partially saturated conditions at two temperature levels

Eleonora Crisci, Raphael Schneeberger, Alexandros Papafotiou, Florian Kober

Identification of key parameters in coupled thermal-hydraulic analysis model for unsaturated Kunigel V1 bentonite

Yusaku Takubo, Yusuke Takayama, Keisuke Ishida

Thermally Aged (165oC-200oC) Bentonite Performance

Sirpa Kumpulainen, Jari Martikainen, Teemu Laurila, Olivier Leupin, Florian Kober

Swelling, outflow, and permeability characteristics of bentonite in NaCl solutions of various concentrations

Masanori Kohno, Shun Kohdo, Tsuyoshi Nishimura

Modelling air convection in a segmented buffer

Peter Eriksson

Mineralogical and geotechnical characterization of two German bentonites from Westerwald and Bavaria

Ali Asaad, Antonia Nitsch, Wiebke Baille, Katja Emmerich

Implications of groundwater composition on the performance of ben-tonite components in nuclear waste disposal facilities

Han Ming Lai, Lidija Zdravkovic, David M. Potts, Matthew Kirby

The alteration of bentonite in contact with carbon steel

Šárka Šachlová, Petr Bezdička, Michaela Matulová, Vlastislav Kašpar, Karol Kočan, Zbyněk Veselka, Petr Večerník

Numerical Modelling of Volume Change Behaviour in Bentonite Buffer Exposed to Thermo-Hydraulic Gradients

Pavan Kumar Bhukya, Nandini Adla, Wang Xuerui, Dali Naidu Arnepalli

Shear resistance of bentonite with non-uniformity distribution in suction

Tomoyoshi Nishimura, Takayuki Motoshima, Sachie Iso

Verification of Von Mises and modified Cam clay models’ imple-mentation using analytical solutions. Triaxial tests simulation.

Jordi Alcoverro, Xavier Pintado, Juha Kuutti, Ville Heino

Reactive transport models of the interactions of corrosion products and unsaturated FEBEX bentonite in laboratory and in situ tests

Javier Samper, Alba Mon, Luis Montenegro

The impact of NaNO3 on the diffusion of dissolved gases in clay

Elke Jacops, Chloé Roonacker, Hannes Claes, Lander Frederickx, Anneleen Vanleeuw, Phung Quoc Tri, Jerry Peprah Owusu, Jon Harrington, Andy Wiseall, Christophe Bruggeman

Modelling of mock-up tests for bentonite seals

Sonja Kaiser, Aqeel Afzal Chaudhry, Martin Hofmann, Thomas Nagel

A study on buffer-material erosion under constant water head condition

Kenji Ishii, Akihiro Matsumoto, Ichizo Kobayashi, Hirohito Kikuchi, Daisuke Hayashi

Filling efficiency of mono-sized pellets for sealing boreholes for a wide range of borehole-to-pellet diameter ratios

Ayaka Sakaki, Toshihiro Sakaki

Gas in radwaste deep geological repositories: example from Bure URL in clay rich formation

Rémi DE LA VAISSIERE, Jean TALANDIER, Christophe DE LESQUEN, Gilles ARMAND

Particle size evolution of granular bentonite on wetting and loading

Hao Zeng, Laura Gonzalez-Blanco, Enrique Romero

Role of poromechanical couplings in gas fracturing around an excavation

Mohammad-Youssef FALLAH-SOLTANABAD, Amade POUYA, Laurent BROCHARD, Minh-ngoc VU, Christophe DE LESQUEN

Impact of Heterogeneity in 3D THM-G Modelling of Laboratory to Field-Scale Tests in the Context of Nuclear Waste Repository Design

Erdem Toprak, Sebastia Olivella

Assessment of the effect of heterogeneities on the hydromechanically coupled behavior of two German bentonites

Wiebke Baille, Antonia Nitsch, Torsten Wichtmann, Ali Asaad, Katja Emmerich

Microstructural Examination of Gas Migration Influence in Heterogeneous Pellet/Powder Bentonite Mixtures Using X-ray Computed Micro-Tomography

Mohammed ZAIDI, Nadia MOKNI, Magdalena DYMITROWSKA, Kui LIU

Suitability investigations of Lithuanian clay formations for the deep geological repository of radioactive wastes

Roma Kanopiene

Modelling of unsaturated homogenisation with an enhanced bentonite material model using COMSOL Multiphysics

Alex Spetz, Ola Kristensson, Daniel Malmberg

CEC as quality proof for smectitic phases in lower Cretaceous clay rocks – illite-smectite ± pure smectite?

Reiner Dohrmann, Kristian Ufer, Tilo Kneuker, Jochen Erbacher, André Bornemann

Multi-scale 2D and 3D characterisation for enhanced understanding of UK lower strength sedimentary rocks.

Kevin G Taylor, Lin Ma, Holly Mills, Xin Zhong, Ke Wang

Unravelling the depositional model of the Opalinus Clay using grain-size variability

Géraldine Nicole Zimmerli, Stephan Wohlwend, Gaudenz Deplazes, Thomas Mann, Anneleen Foubert

Influence of texture on the chloride accessible porosity fraction explored by SEM and µCT data

Carmen Andrea Zwahlen, Thomas Gimmi, Andreas Jenni, Martin Mazurek, Daniel Traber, Raphael Wüst

Exploring the dynamics of aquifer - aquitard systems: new insights from 81Kr model ages

Daniel Traber, Nicolas Roy, Emiliano Stopelli, Michael Heidinger, Florian Eichinger, Christoph Wanner, Thomas Gimmi, H. Niklaus Waber, Jin Ma

Mont Terri BIM — Project overview and technical realisation

Martin Ziegler, Senecio Schefer, Stefan Volken

Geochemistry and pore water in the lower confining units of the Opalinus Clay at Mont Terri Rock Laboratory (Switzerland)

Ana María Fernández, Catherine Lerouge, Francisco Javier León, Paula Nieto, David Jaeggi, Michael Kühn

Underground storage of high-grade radioactive waste in mudrock: In search of the Holy Grail

Laurence Warr, Georg Grathoff

Development and Emplacement of an Annular Grout Envisaged for HLW Emplacement Drifts to Study Long-Term Interaction with Opalinus Clay

Lukas Martin, Wolfgang Seidl, Sebastian Kernbichl, Nicole Wieser, René Bolliger, Julien Bizzozero

Monitoring fluid movement and swelling pressure development in semi-technical scale Sandwich sealing system experiments

Martin Hofmann, Eleanor Bakker, Franz Königer, Thomas Nagel, Rainer Schuhmann, Katja Emmerich

3D Hydro-Mechanical modelling to support the design of the REG experiment in the Callovo-Oxfordian Claystone

Gilles Corman, Abhishek Rawat, Jean Talandier, Rémi de La Vaissiere, Youssef Fawaz, Frédéric Collin

Development of Boron-Enhanced Metakaolin-Based Geopolymers for the Immobilisation of Radioactive Debris with the potential of Neutron Absorption

Xiaobo Niu, Yogarajah Elakneswaran, Ryosuke Kikuchi

Performance of MoxOy pH sensor prepared by thermal oxidation for the long term monitoring of nuclear waste disposals

Djouhar AOUBIDA, Stéphanie BETELU, Johan BERTRAND, quoc-nghi PHAM, Nita DRAGOE, Ioannis IGNATIADIS

Cation exchange capacity measurement for bentonite-cement reactions in a nuclear waste disposal - what are we really measuring?

Arkadiusz Derkowski, Adam Zięba, Reiner Dohrmann, Stephan Kaufhold

Influence of microstructure and pore saturation in measuring corro-sion rates of a carbon steel API 5L X65 in contact with cement grout in future nuclear waste disposal program

Yendoube Charles SANO MOYEME, Stéphanie BETELU, Johan BERTRAND, Stéphane GABOREAU, Karine GROENEN-SERRANO

Differentiation of fractures and rock mass deformation in clay rocks by Machine Learning

Rushan Wang, Andrea Manconi, Martin Ziegler

Large-scale reactive transport simulations of uranium migration in Opalinus Clay accelerated by means of surrogate models

Marco De Lucia, Max Lübke, Theresa Hennig, Bettina Schnor

Measurement of pore water density in a bentonite using decalin

Hailong Wang

Development of test specimens for evaluating permeability measurements of tight rocks

Carlo Dietl

CP1 and Tribicarb-3D: unique long term and large scale in situ migration tests in Boom Clay at the HADES Underground Research Laboratory

Marc Aertsens, Eef Weetjens, Joan Govaerts, Norbert Maes, Stéphane Brassinnes

EFFECT OF REDOX STATE ON THE REDOX SENSITIVE ELEMENT RETENTION BY APTIAN SANDS

Esra Orucoglu, Sylvain Grangeon, Myriam Agnel, Benoît Madé, Mathieu Debure

Mechanochemical activation of synthetic Na-n-micas – applications in retention of high-level radioactive waste

Aníbal López-Marín, Rosa Martín-Rodríguez, Fernando Aguado, Ana C. Perdigón

Development of a separation method for Am-, Sr-, Pu- and U-isotopes in concrete using extraction chromatography

Gloria Steckholzer, Claudia Landstetter, Krystle Elbers, Rainer Kadan

Migration behaviour of Ra-226 in the sandy facies of Opalinus Clay

Naila Ait-Mouheb, Victor Vinograd Vinograd, Martina Klinkenberg, Jenna Poonoosamy, Guido Deissmann, Luc R. Van Loon, Dirk Bosbach

Donnan equilibrium in compacted bentonite

Magnus Hedström, Ya-Wen Hsiao

Neptunium migration in Opalinus Clay - one experiment with multiple numerical geochemical solutions

Theresa Hennig, Madlen Stockmann, Claudia Joseph, Vinzenz Brendler, Tobias Reich, Michael Kühn

Effective diffusivity prediction by considering multivariable regression and rock properties

Nikolaos Prasianakis, Romana Boiger, Georg Kosakowski, Raphael Wüst, Sergey Churakov

Successful gas tests at the GAs permeable Seal Test (GAST) - Highlights and lessons learned (Grimsel Test Site, CH)

Emiliano Stopelli, Thomas Spillmann, Bill Lanyon, Rémi de La Vaissière, Jean Talandier, Jeremy Chen, Simon Norris, Stratis Vomvoris, Irina Gaus, Florian Kober

Harnessing microbial processes consuming hydrogen in radioac-tive waste repositories

Camille Rolland, Olivier Leupin, Rizlan Bernier-Latmani

Geochemical processes in a repository with clay barriers at high saline conditions

Claudia Joseph

Cement-Bentonite Interaction with Different Cement Materials at Elevated Temperatures 2: Modeling

Sohtaro ANRAKU, Ryohei KAWAKITA, Yuji HANAMACHI, Seiichiro MITSUI, Hiroshi SASAMOTO, Morihiro MIHARA

Comparison of different iron/bentonite exhibition tests and effect of the type of exchangeable cation on corrosion products

Stephan Kaufhold, Kristian Ufer, Reiner Dohrmann, Franz Renz, Rene Lucka, Maximilian Kilic

Concrete-clay interaction – a systematic review and modelling study

Marcelo Laviña, Andrés Idiart, Olga Riba, Fidel Grandia, Nicolas Michau, Xavier Bourbon, Benoit Cochepin

Studying the reactive transport of CO2 in Opalinus Clay with experimental and numerical analyses

Shuang Chen, Christian Ostertag-Henning, Vinay Kumar, Haibing Shao, Gesa Ziefle, Jobst Maßmann

Exchangeable and soluble ion populations in semi-technical scale Sandwich sealing system experiments

Eleanor Bakker, Martin Hofmann, Thomas Nagel, Franz Königer, Rainer Schuhmann, Katja Emmerich

Delving into Bentonite Sedimentation Dynamics

Macarena Leal Olloqui, Daniel Svensson, Heikki Laitinen, Kenji Ishii, Patrik Sellin

Leaching kinetics of metakaolin in alkaline solution

Ryosuke Kikuchi, Xiaobo Niu, Yogarajah Elakneswaran

Reactive transport model of the long-term geochemical evolution in the near field of a HLW repository at the disposal cell scale: sensitivi-ties, variants and model simplifications

Javier Samper, Alba Mon, Luis Montenegro

MINFF: A new classical forcefield for (clay-)minerals

Michael Holmboe

Five-year laboratory tests of thermo-hydro-mechanical-chemical evolution of compacted bentonite: an experimental and modelling study

María Victoria Villar, Andrés Idiart, Emilie Coene, Jaime Cuevas, Ana María Melón, Ana Isabel Ruiz, Almudena Ortega, Rubén Iglesias, Ville Heino

Deriving a Method for Host Rock specific Temperature Compatibility: Clay Rock

Kim-Marisa Mayer, Oliver Czaikowski, Bernd Förster, Matthias Hinze, Artur Meleshyn, Marvin Middelhoff, André Rübel, Klaus Wieczorek, Jens Wolf

Influence of temperature on the self-sealing of fractures in the Callovo-Oxfordian claystone

Mensan AGBOLI, Dragan GRGIC, Mohamed MOUMNI

Conclusions on the post-yield behaviour of Opalinus claystone from multistage triaxial tests

Eleni Gerolymatou, Martin Kracht, Maximiliano Vergara

Effect of pore water salinity on the tensile strength of Boom Clay

Ties de Jong, Bhini Chandan Malagar, Philip J. Vardon, Anne-Catherine Dieudonné

THM-Modelling of the ALC1605 in situ heating experiment in Cal-lovo-Oxfordian clay formation

Eric Simo, David Seidel, Thomas Nagel, Alexandru Tatomir, Miguel Mánica, Jörg Buchwald, Dmitri Naumov

Open-source implementation of a transversely isotropic elasto-visco-plastic damage model for clay shales in MFront and OpenGeoSys

Mehran Ghasabeh, Kavan Khaledi, Bastian Graupner, Florian Amann, Thomas Nagel

Numerical simulation of bentonite saturation at different temperatures

Larissa Friedenberg, Artur Meleshyn, Matthias Hinze

Temperature history effect on swelling pressure of Kunigel-V1 bentonite cured in confined condition

Kunlin RUAN

Evolution of gases in an unsaturated bentonite buffer

Mattias Åkesson, Heikki Laitinen, Patrik Sellin

Changes in swelling and hydrological characteristics of compacted bentonite by heating at 200 °C

Yasutaka Watanabe, Ema Yoshikawa, Misato Shimbashi, Shingo Yokoyama, Takahiro Goto, Yoichi Yamamoto

Current status of the in-situ interaction experiment at the Bukov URF

Anna Golubko, Jan Smutek, Jiří Svoboda

Sampling, Measurements and Analysis of the Clay Barriers in the Prototype Repository at Äspö HRL

Magnus Kronberg, Patrik Sellin, Daniel Svensson, Fredrik Vahlund, Torbjörn Sandén

Investigating thermal coupling in a bentonite buffer

Stamatina Alexandropoulou, Lidija Zdravkovic, David Potts, Matthew Kirby, Simon Norris

Research into the Impact of Non-homogeneity on the Integrity of Bentonite Materials

Markéta Kučerová, Jiří Svoboda

TH-Modelling for the in-situ HotBENT experiment at the Grimsel Test Site

Victoria Burlaka, Eric Simo, Tymofiy Gerasimov, David Seidel, Thomas Nagel, Christoph Lehmann, Jörg Buchwald, Dmitry Naumov, Alexandru Tatomir

Influence of sand mixture on gas pressure for bentonite

Tomoyoshi Nishimura

Changing of axial strains in creep performance for bentonite-sand mixture

Tomoyoshi Nishimura

Cation exchange simulation in Wyoming-type bentonite considering mechanical issues

Xavier Pintado, Rubén López-Vizcaíno, Ángel Yustres, Vicente Navarro, Laura Asensio, Sirpa Kumpulainen, Mika Niskanen

Benchmarking of Double-Structure Models for the Numerical Simulation of Swelling Clays

Christian B. Silbermann, Matthias Hinze, Larissa Friedenberg, Philipp Schädle, Markus Knauth, Thomas Nagel

3D Modelling of Coupled Hydro-Mechanical Processes in Fractured Opalinus Clay Shale

Muhammad Raharsya Andiva, Qinghua Lei, Martin Ziegler

Impact of desaturation on the diffusion of gases in clay-based samples

Elke Jacops, Aadithya Gowrishankar, Norbert Maes, Pieter Verboven, Hans Janssen

Young’s modulus in claystones – adding complexity, reducing uncertainty

Sandra Schumacher, Werner Gräsle

Gas breakthrough simulation using bimodal porosity and mul-tiscale approach

Eike Radeisen, Hua Shao, Jürgen Hesser, Michael Pitz, Wenqing Wang, Olaf Kolditz

Development of a two-phase hysteretic model accounting for water and gas entry pressure for evaluating hysteretic hydrodynamic properties of clay-based materials in a deep geological repository for radioactive waste

Zakaria Saâdi

Testing device for the visualisation of gas-driven cracks in clays

Joaquín Liaudat, Philip J. Vardon, Michael A. Hicks, Anne-Catherine Dieudonné

Erosion of compacted bentonite at elevated temperature

Majid Sedighi, Ziheng Wang, Linhau He, Huaxiang Yan, Mojgan Hadi Mosleh, Andrey Jivkov

Observations and Quantification of Gas Flow in Sand-Bentonite Mixtures using Analogue Tests

Elliot James Muir Bird, Robert Cuss, Phil Neep

FE-G: 10 years of gas dynamics observations at the Full-Scale Emplacement experiment (Opalinus Clay, Mont Terri, CH)

Emiliano Stopelli, Typhaine Guillemot, Myriam Agnel, Scott Briggs, Fraser King, Rolf Kipfer, Simon Norris, Nikitas Diomidis, Irina Gaus, Raphael Schneeberger

14 years long Gas Experiment in borehole PAC1011 at ANDRA’s Un-derground Research Laboratory: Modelling the injection and transport of an Argon/Helium gas mixture in the Callovo-Oxfordian Claystone under in situ conditions

Nicolas Barret, Jean Croisé, Agnès Vinsot, Myriam Agnel, Rémi de La Vaissière

What limits the temperature at canister surface in clay-based HLRW concepts? – Discussion in an international context

Saleem Chaudry, Reiner Dohrmann, Robert Lippmann

The role of bentonite in the high-level radioactive waste repository design

Eva-Maria Gottron, Merle Bjorge, Stephen Klimke, Marc Wengler, Anne Bartetzko, Wolfram Rühaak

Preliminary design of a disposal facility for high-level radioactive waste in claystone

Michael Werres, Stephen Klimke, Dominik Gottron, Frederik Fahrendorf, Niklas Bertrams, Thomas Lohser, Wolfram Rühaak

Characterization of the Lower Cambrian and the Lower Triassic clayey formations in terms of the potential for the sitting of Deep Geological Repository of radioactive waste in Lithuania

Jurga Lazauskienė, Jolanta Čyžienė

Geological variability of the Opalinuston-Formation in Southern Germany: new insights from the research project SEPIA

Thomas Mann, Tilo Kneuker, Géraldine Nicole Zimmerli, Jochen Erbacher, André Bornemann, Bernhard Schuck, Reiner Dohrmann, Christoph Neukum, Lukas Pollok

OVERVIEW OF GEODYNAMIC EVOLUTION EFFECT ON HYDROGEOLOGICAL PERFORMANCE OF DEEP GEOLOGICAL REPOSITORY SITE FOR RAWASTE. FEED BACK AND LESSONS LEARNED FROM TWO DECADES OF STUDIES

Hakim BENABDERRAHMANE, Johan HOLMEN

Kiirunavaara Ca-smectite, northern Sweden: a natural analogue of long-term clay stability

Raphael Schneeberger, Ulf. B Andersson, Albert Gilg, Illya Bindeman, Reiner Dohrmann, Sirpa Kumpulainen, Leena Kiviranta, W. Crawford Elliott, J. Marion Wampler, Cyprian Ozigbo, Igor Villa, Tsubasa Otake, Ryosuke Kikuchi, Tatsuya Fujimura, Tsutomu Sato, Satoru Suzuki, Takahiro Goto, Shuhei Nemoto, Rizlan Bernier-Latmani, Natalia Jakus, Russell W. Alexander, Nicolas Michau, Mehran Behazin, Alex Hughes, Simon Norris, Ville Heino, Patrik Sellin, Daniel Svensson, Olivier X. Leupin

Unveiling early diagenetic carbonate precipitation: Sequential C-isotope analysis of calcite and siderite in Opalinus Clay

Stephan Wohlwend, Lukas Aschwanden, Carmen Zwahlen, Martin Mazurek, Gaudenz Deplazes

Geochemistry of pore waters in Opalinus Clay at the Mont Terri Rock Laboratory within the Bitumen-Nitrate-Clay interaction experiment

Torben Weyand, Michael Jendras, Katrien Hendrix, Nele Bleyen

39Ar and 37Ar in deep groundwater: Evaluation regarding young components, cross-formation flow and in-situ production

Daniel Rufer, Roland Purtschert, H. Niklaus Waber, Michael Heidinger, Daniel Traber, Jens Becker

Geochemical profiles in the hydrogeological system of the Opalinus Clay at Mont Terri, Switzerland

Marie Bonitz, Anja Maria Schleicher, Theresa Hennig, David Jaeggi, Michael Kühn

Crushed claystone used as material for the construction of EBS-components in repositories for nuclear waste – A generic methodology for material selection

Marvin Middelhoff

Rock mass response to processes in a Sandwich shaft sealing system

Jürgen Hesser, Matthias Hinze, Markus Furche, David Jaeggi, Senecio Schefer

Modelling sulfide corrosion in the Swiss HLW repository under various repository settings

Jin Ma, Paul Wersin, Nikitas Diomidis

As-Placed Dry Density of Gap Fill Material in Overbreak Zones within the Placement Room

CHANG SEOK KIM, KENNETH BIRCH, PETER KEECH

Excavation of the Konrad 2 shaft landing station in a clay and marl claystone: geotechnical challenges and support solutions

Stephan Gehne, Mike Lieske, Jan Bauer, Rainer Weißmann, Mirko Polster, Volker Busse

Feedback on the multi-scale mechanical and technical demonstration of drift construction at the French URL

Jad Zghondi, Gilles Armand, Jana Jaber, Minh-ngoc Vu, Jan Cornet, Carlos Plua, Roy Chaaya

A wireless data transmission system for the future deep geological repository

José Luis García-Siñeriz, Susana Tuñón, María Rey, Juan Carlos Mayor, Katja Emmerich, Matthias Hinze, David Jaeggi, Senecio Schefer

Observation of saturation processes in the Sandwich experiment with ERT (URL Mont Terri)

Markus Furche

Influence of polysulfide radicals in measuring corrosion rates of a carbon steel API 5L X65 in contact with cement grout in future nucle-ar waste disposal program

Yendoube Charles SANO MOYEME, Stéphanie BETELU, Johan BERTRAND, Stéphane GABOREAU, Karine GROENEN-SERRANO

Estimating Water Retention of Compacted Bentonite with Cat-Boost: Integrating Physical Model Residuals and Penalized Learning

Muntasir Shehab, Reza Taherdangkoo, Christoph Butscher

Full-Scale In-Situ System Test (FISST) at the Finnish spent nuclear fuel disposal facility. Analysis and simulation.

Xavier Pintado, Mika Niskanen

MANAGEMENT OF SORPTION DATA IN SUPPORT TO RADIOACTIVE WASTE MANAGEMENT

Stéphane Brassinnes, Marta López-García, Darío Pérez, Maria Abada, Irene Canals, Albert Nardi, Lara Duro, David García

Numerical analysis of permeability in sphere-platelet mixtures

Ryunosuke Oishi, Tsubasa Yagi, Otono Miura, Shusaku Harada

Trace elements in Dutch Paleogene clays

Erika Neeft, Thilo Behrends, Alwina Hoving, Jasper Griffioen, Anne-Catherine Dieudonné, Phil Vardon, Marja Vuorio

Effect of environmental conditions on the sorption of 241Am(III) on natural clayrocks and their main constituents

Liesbeth Van Laer, Dorien Verhaegen, Greet Verstrepen, Delphine Durce, Norbert Maes, Stéphane Brassinnes

Radionuclide transport in variably water-saturated compacted clays: a pore-scale view

Yuankai Yang, Ravi A. Patel, Yaoting Zhang, Nikolaos I. Prasianakis, Jenna Poonoosamy, Guido Deissmann, Sergey V. Churakov, Dirk Bosbach

Insights into the Interactions of Clay Minerals and Humic Acids: A Molecular Dynamics Study

Kanato Matsushima, Yuta Fukatsu, Takamitsu Ishidera, Ayano Eguchi, Kenji Yotsuji, Yukio Tachi, Takahiro Ohkubo

Transport Properties of Water in a Polydisperse Coarse-Grained Model of Sodium Montmorillonite

Yaoting Zhang, Mikaella Brillantes, Justine Kuczera, Keyvan Ferasat, Scott Briggs, Chang Seok Kim, Jason D. Giallonardo, Thomas G. Tranter, George Opletal, Yuankai Yang, Jane Howe, Laurent K. Beland

Comparison of experimental diffusion data of various cationic elements in rock samples from the deep-hole drilling campaign in northern Switzerland with model predictions by the ClaySorDif model

Martin A. Glaus, Petar Bunic, Dmitrii A. Kulik, Cyrill Lang, George D. Miron, Luc R. Van Loon, Raphael A.J. Wüst

Iron(II)-montmorillonite interaction: experimental results and model-ling for dispersed and compacted systems

Jebril HADI, Mirjam KICZKA, Andreas JENNI, Paul WERSIN, Jules GOETHALS, Jean-Marc GRENECHE, Olivier LEUPIN, Nikitas DIOMIDIS

Electrostatic interactions at clay mineral surfaces: linking geochem-istry with geomechanical properties

Christophe Tournassat, Wenming Dong, Nicolas Marty, Sylvain Grangeon, Carl Steefel

Transport experiments in claystone: electrostatic effects and preferential pathways

Andreas Jenni, Mirjam Kiczka, Carmen Zwahlen, Urs Mäder, Hans Meeussen, Thomas Gimmi

Experimental investigation of the changes in transport properties of Opalinus claystone/concrete interface samples from the Mont Terri CI experiment

Norbert Maes, Quoc Tri Phung, Thi Nhan Nguyen, Anneleen Vanleeuw

Cement-Bentonite Interaction with Different Cement Materials at Elevated Temperatures 1: Experiments

Ryohei Kawakita, Sohtaro Anraku, Yuji Hanamachi, Seiichiro Mitsui, Hiroshi Sasamoto, Morihiro Mihara

Gains and losses of exchangeable cations in ‘alternative bentonite buffer material in-situ tests’ (ABM-1, -2 and -5) after heating from 140 °C to 250 °C - what has caused observed differences?

Reiner Dohrmann, Jens Gröger-Trampe, Stephan Kaufhold

Evolution of microbial populations under the influence of increasing temperature in the Callovian-Oxfordian clay-rich rock

Mélanie Lundy, Marc Labat, Sylvie Daumas, Stefan Wechner, Yannick Linard

Differences between the basal spacings of random powder patterns and air-dried oriented aggregates of bentonite samples

Ana Beatriz Zabala, María Victoria Villar, Jaime F. Cuevas

Hydrogeochemical processes occurring in excavated argillaceous rocks stored at the surface as heaps and consequences on water chemistry

Myriam I. Agnel, Adrien Schwindt, Mathieu Debure, Joachim Tremosa, Yves Thiry, Paul-Olivier Redon

A mechanistic understanding of bentonite alteration at corroding iron interfaces

Haydn Martin Haynes, Graham Kenyon, James Hesketh, Cristiano Padovani, Lorraine Field, Nikitas Diomidis

Mutual effects of pH, matrix elements and organic ligands on the mobility of U(VI) in bentonite systems

Katja Schmeide, Thimo Philipp, Claudia Sieber, Nina Huittinen

Quantitative analysis of the mineralogical composition of bentonites by full pattern fitting using the powdR package

Stephen Hillier, Stephan Kaufhold, Kristian Ufer, Jan Dietel, Adrián Lorenzo, Mercedes Suárez

Acidification and CO2-degassing in bentonites triggered by oxida-tion of Fe(II)–containing minerals

Stefan Dultz

Dynamic and static experiments for the identification of the effect of transient processes on corrosion

Ana María Fernández, Ursula Alonso, Paula Nieto, Manuel Mingarro, Tiziana Missana

Effect of organic molecules on radionuclide retention in COx clay rock: the case of Ni-TBP/EDTA mixtures

Romain V.H. Dagnelie, Marwa Assaf, Emilie Thory, Pierre Henocq

Distorting mirrors – new perspectives on the layer charge reduction phenomena in heat-treated smectites: implications for CEC measurements in bentonites

Artur Kuligiewicz, Arkadiusz Derkowski, Nadine J. Kanik

Self-sealing potential of fractures as a result of hydration, shear, and temperature

Robert Cuss, Andrew Wiseall, Jon Harrington

Effect of Sodium Occupancy and Solute Concentration on the Swelling Behaviour of Poorly Indurated Boom Clay

Hassan AL MAIS, Frederic COLLIN, Yu-Jun CUI, XiangLing LI, Elie VALCKE, Lian WANG, Suresh SEETHARAM, Temenuga GEORGIEVA

The anisotropic creep behaviour and the long-term strength of Opalinus Clay

Lina Gotzen, Lisa Winhausen, Mohammadreza Jalali, Florian Amann

Numerical analyses of geological barrier integrity under parameter uncertainty

Jan Thiedau, Maximilian Bittens, Maßmann Jobst, Mayr Sibylle

Assessment of in-situ heater experiments conducted in the Callo-vo-Oxfordian claystone based on the French high-level radioactive waste disposal concept

Carlos Plúa, Minh-Ngoc Vu, Frédéric Bumbieler, Armand Gilles

HE-E heating experiment in the Mont Terri rock laboratory - sampling of a hot, unconsolidated granular bentonite buffer after 12 years of heating during continued operation

Florian Kober, Urs Mäder, Maria Villar, Bill Lanyon

A standard thermodynamic-based extension of the Modified Cam-Clay model for plastic-viscoplastic geomaterials

Simon Raude, Goustan Bacquaert, Kyrylo Kazymyrenko, David Haboussa

Enhancements to a Hydromechanical Material Model for Compacted Bentonite

Ola Kristensson, Mattias Åkesson

Numerical analysis of the re-saturation of bentonites under isothermal and non-isothermal conditions using a double-porosity model

Ramon Vasconcelos, Antonio Gens, Carlos Eduardo Rodríguez, Jean Vaunat, María Victoria Villar

HYDRO-MECHANICAL BEHAVIOUR OF BENTONITE AT HIGH TEMPERATURE

NATALIA GIMENO, RUBÉN JAVIER IGLESIAS, GUILLERMO GARCIA, MARIA VICTORIA VILLAR

Geochemical modelling of mineral-water reaction between Bavarian bentonite B25 and Opalinus clay pore solution

Kyra Jantschik, Artur Meleshyn

Thermochemical alterations in montmorillonite: Experiment constraints in the presence of organic anion ligands

Ritwick Sudheer Kumar, Laurence N. Warr, Georg H. Grathoff, Balu R. Thombare

Tracking bentonite-water interactions by stable-H- and O-isotope exchange over a thermal gradient: First isotopic results from the Alternative Buffer Materials 2 and 5 bentonites

Nadine J. Kanik, Fred J. Longstaffe, Arkadiusz Derkowski, H. Albert Gilg

Engineered Barrier 200C – High temperature in-situ experiment

Jiří Svoboda, Radek Vašíček

Modeling of the HotBENT test using COMSOL Multiphysics

Daniel Malmberg, Alex Spetz, Chang Seok Kim

Modelling the Disturbed Rock Zone behaviour in a Deep Geological Repository

Nandini Adla, Pavan Kumar Bhukya, Dali Naidu Arnepalli

Elastic-plastic components in void ratio with suction

Tomoyoshi Nishimura, Hanbing Bian, Isam Shahrour

Benchmark case for non-isothermal multiphase flow and reactive transport for radioactive waste disposal

Javier Samper, Alba Mon, Etienne Ausborde, Tianfu Xu, Yu Han, Milan Hokr, Asta Narkuniene, Luis Montenegro, Brahim Amaziane, Mustapha Elossmani, Y Yuan, Jan Sembera, Povilas Poskas

Experimental and numerical modelling of binary bentonite-based mixture compressibility

Arisleidy Mesa-Alcantara, Enrique Romero, Joel Torres-Serra, Nadia Mokni

The influence of faults on the geomechanical properties of Opal-inus Clay – First results from the PF-A experiment

Lisa Winhausen, Florian Amann, Martin Ziegler, Chris J. Marone

Diffusion of dissolved gases in clay: a collaborative modelling exercise of EURAD GAS

Elke Jacops, Li Yu, Joan Govaerts, Abhishek Gupta, Michael Pitz, Gesa Ziefle, Anne-Catherine Dieudonné, Asta Narkuniene, Frédéric Collin, Gilles Corman, Séverine Levasseur

Experimental Study on Evaluation Method of Apparent Erosion Rate Constant of Bentonite using X-ray CT Images

Norihisa Osawa, Tomoko Ishii, Kenji Ishii, Yuichi Niibori

Modeling of gas propagation along a micro-tunnel in the Meuse / Haute-Marne Underground Research Laboratory

Cécile Coulon, Guillermo Martinez, Catherine Yu, Thomas Cavalera, Mohamed Hayek, Rémi de La Vaissière

The effect of an alkaline plume on the self-sealing capacity of Boom Clay evidenced by high resolution computed tomography and hy-draulic conductivity measurements

Miroslav Honty, Ivan Josipovic, Matthieu N. Boone, Severine Levasseur, Xavier Sillen

Modelling gas drainage in argillite pores with SPH method

Kayani Ganeshalingam, Magdalena Dymitrowska, Djimédo Kondo

The Hydro-mechanical Interaction between Different Tunnel Support Strategies and the Excavation Damaged Zone (EDZ)

Sina Shivaei, Maximilian Schoen, Arash Alimardani Lavasan, Torsten Wichtmann

Gas transport along granite/bentonite interfaces

Vanesa Gutiérrez Rodrigo, Pedro Luis Martín Martín, María Victoria Villar Galicia

Interactions at the interface between EBS-components of a repository for nuclear waste in claystone formations

Marvin Middelhoff, Jean Talandier

Mini GAST: Experimental Upscaling of an Engineered Gas Permeable Seal

Enrique Romero, Clara Alvarado, Antonio Lloret, Juliana Knobelsdorf, Thomas Spillmann

Laboratory scale experimental assessment of bentonite-sand mixtures

Caroline C. Graham, Jon F. Harrington, Qian Zhang, Jean Talandier, Remi de La Vaissière

Experimental study and numerical modeling of poromechanical be-haviour of Callovo-Oxfordian claystone under drained and undrained conditions

Yuhao ZHANG, Shouyi XIE, Jianfu SHAO, Minh-Ngoc VU

Hydro-mechanical Properties of Rock and Bentonite Mixtures for Gas Management within Geological Disposal Facilities

Elise Wai-Ming Mouat, Ian L Molnar, Christopher McDermott, Bryne Ngwenya, Clare Bird, George Towler